Multiformity of particle arrays assembled with a simple dip-coating
Multiformity of particle arrays assembled with a simple dip-coating
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DOI：
10.1016/j.colsurfa.2007.08.031
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发表时间：
2007-12-01
影响因子：
5.2
通讯作者：
Konno, Mikio
中科院分区：
文献类型：
--
作者：
Nagao, Daisuke;Kameyama, Ryoji;Konno, Mikio
研究了一种简单的浸涂方法，使用亚微米尺寸、高度单分散的二氧化硅和聚苯乙烯颗粒在玻璃基板上制造二维有序结构的颗粒。该方法被证明适用于具有高规则性的颗粒单层的制造。通过重复浸涂制备多层聚苯乙烯颗粒。通过将基材浸入水中可以分离聚苯乙烯颗粒层，从而形成聚苯乙烯颗粒的单层和多层膜。重复浸涂也适用于不同尺寸颗粒的多层。通过涂覆聚苯乙烯颗粒并同时涂覆二氧化硅颗粒，在单层六边形排列的520nm聚苯乙烯颗粒下形成233nm二氧化硅颗粒的蜂窝结构。这表明，在用二氧化硅颗粒悬浮液涂覆之后，二氧化硅颗粒在聚苯乙烯颗粒层下方蠕动。采用双涂层法在单层六边形排列的590 nm二氧化硅颗粒上形成233 nm二氧化硅颗粒的网络结构。 175 和 520 nm 聚苯乙烯颗粒的双层也用这种涂层方法制备。 (c) 2007 Elsevier B.V. 保留所有权利。
A simple dip-coating method was examined to fabricate two-dimensional ordered structures of particles on glass substrate with the use of submicron sized, highly monodisperse particles of silica and polystyrene. This method was demonstrated to be applicable to the fabrication of particle mono-layer with high regularity. Multi-layers of the polystyrene particles were fabricated by the repetition of the dip-coating. The polystyrene particle layers could be separated by immersing the substrate into water, leading to formation of mono- and multi-layered films of the polystyrene particles. Repetition of the dip-coating was also applicable to multi-layering of particles with different sizes. A honeycomb structure of 233 nm silica particles under the mono-layer of hexagonally arranged 520 nm polystyrene particles was made by the coating with the polystyrene particles accompanied by the coating with the silica particles. It was indicated that the silica particles crept under the polystyrene particle layer after the coating with the silica particle suspension. A network structure of 233 nm silica particles on mono-layer of hexagonally arranged 590 nm silica particles was formed with the double coating method. Double layer of 175 and 520 nm polystyrene particles was also fabricated with this coating method. (c) 2007 Elsevier B.V. All rights reserved.